NEW YORK—November’s midterm elections pose a serious challenge for US President Donald Trump. Key components of his economic agenda, especially its protectionist measures, have raised concerns about the rising cost of living, prompted a rare rebuke from the Supreme Court, and cast doubt on the legal basis for his tariffs. Fortunately for Trump and the Republicans, they still have time to pivot to a pro-growth agenda that better addresses voter anxieties before the midterms.

© Project Syndicate